Ferndale is committed to making sure you are satisfied with your purchase of DerMend products. As such, Ferndale offers a 100% 30-day money-back guarantee on DerMend products. If, for any reason, you are dissatisfied with your purchase, you may return the unused portion of the product and receipt to Ferndale within 30 days of purchase for a replacement, exchange or full refund of the purchase price (less shipping costs).